A: I don't understand.

B: Of course you do/Of course you don't

That's the question, which one is correct in order to confirm what "A" said?


Both are correct.If the second person doesn't agree, the sentence should be affirmative

But you do.

If the second person agrees, the sentence should be negative

Of course you don't.


Short answer:

You can to use just "of course", it is easy, short and clear.

Long answer:

We can to split the phrases and understand everything more.

I [don't] understand. Negative

Of course you [don't]. If you don't understand, the sentence has to use the negative form.

  • Don't capitalize the first word after a comma! (Unless it is a proper noun.) Aug 18 '16 at 22:18
  • "It doesn't make any problem" is not idiomatic. Aug 18 '16 at 23:27
  • @Mattew In English, we use the bare infinitive after "can." It's We can split, not We can to split. Aug 19 '16 at 2:39

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